Cutting-tool.



C. P. lHEINKBL CUTTING TOOL. Y APPLATON FILED FEB. 8, 1909. V

Patented Aug. 11, 1914-.

s SHBETS SHBET l' C. F.` HEINKEL. CUTTING TOOL.

APPLIGATIQN FILED rm. a, 1909.

1,106,561. Patented Aug. 11,1914.

3 SHEETS-SHEET 2.

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o. P. EINK-EL. CUTTING TooL.l

APPLIQATION FILED FEB. 8, 1909. 1510656 1 Patented Aug. 11, 1914.

3 SHEETS-SHEBT-3- entre sfraas rannte crimen.

CHRISTIAN F. HEINKEL, OF'CLEVELAND, OHIO.

curative-Toor..

incassa.

Specication of Letters Patent. Patented Aug. l1, 3914i,

Application fuearebmary s, 1909. serial No. 416,787.

To all/whom it may concern:

vBe it known that I, CHRISTIAN F. HEIN- Knm a citizen of the UnitedStates, residing at Cleveland, in, the .county of Cuyahoga and usefulImprovement in Cutting -Tools, of which the following is aspecification.

Myiinvention relates to -adjustable cutting tools in which theadjustment of the cutters of is accomplished by means of a threadedengagement inactive@lll the cutters and the Vad- .inst-mg means. 1

ffllhe object of myinvention Iis: van inex.

having a threaded and operative engage-l ment with an adjusting means.

In the accompanying drawings: Figure I is a side view of a cutting tool,partly broken vaway toshow one arrangement of cutters and adjustingmeans. Fig. II is a section on J :line 1-c of Fig. I. Fig. III is asection on 'line b-b of Fig. I, showing a clamping devvFig. VI is a sideview of a cutting tool,

partly broken away to show another arrangement 'ofjcutters and adjustingmeans.

Fig. V isa section on line /z--t of Fig. IV.

a'Fig. ,TVI lisa side view of a cutting tool, 'partly brokenaway to showan arrangement of `cutters, adjusting means, lock' nut, and retainingnut. Fig. VII is a side view of a' cutting toohpartly-,I broken away toshow a' an arrangementof cutters, adjusting means, loch cone, lock' conesleeve, and retaining nut. Fig. VIII is a side view ot'a cutting toolpartly broken away to show an arrange ment ot cutters, adjusting means,and lock 5 nut.l Fig. IX is a side view of a cutting tool,

,partly-broken away, to show another arrangement of cutters, adjustingmeans, and lock nut. Fig. X is a side view ot' a cutting tool, partlybroken-'away to show another ar- I u rangement of cutters, adjusting1means, and

locking means. Fig. XI is a side view ot a cutting tool, partly/,brokenaway to show another arranggerne'nt of'cutters, adjusting insane,a-nd'locking means.l Fig. XII is a 5 side view ct a cutting tool,partlyl broken State of Ohio, have invented a new andl away to show anarrangement of cutters mountedon a cut-terblock, adjusting means,and'lockmg means. Fig.fXIII is a section 'of securing thel cutter blockto the body. Fig. XIV isa partial sect-ion, showing an'- otherarrangement of mounting cutters on a cutter block, adjusting means, andlocking means. Fig. XV is a side view of a cutting tool, partly brokenaway toshovv another arrangement of cutters, adjusting means, andlocking means.

Similarv numerals refer to similar parts throughout 4the several views.

A general perusal of the drawings will show that the spirit and intentof this invention is: a plurality of cutters which are 4 adjustablesimultaneously,\inward or' outward, by means of a threaded engagementbetween an adjusting means and said cut- Iters. It. will be noted thatmany modifications ot'construction can be devised which employ thespirit and intent of this invention. I therefore, 'and in order toclearly illustrate and have the spirit and intent of this inventionthoroughly understood, vhave shown several modifications in the drawingsand will describe same, generally only, in this specification.

Referring particularly to cutting tool shown in Figs. I and II; thisconsists of aA body 13, of cutters 14, of adjusting cone 1'5, ofretaining nut 16, `and of clamping Ydeon line j-j of Fig. XII, showing amethod vices y. Body 13 has a cent-ral and circular opening 17 adaptedto receive a shank, and projections 18 which have grooves 19 adapt.-edto receive cut-ters 14; said projections further have suitableopenings adapted to receive clamping devices g/ shown in Fig. III. Body13 further has a conicalan'outh 20,1the cone face of which issomewhatback of the bottom of the thread on the side of cutters 14 sonthatadjust-ing cone 15 will against said cone face whenretaining nut 1G istight. Body 13 further. has atubular prjection 21 which is plain partway to receive adjusting cone 15, and thereaded part Way to receiveretaining nut 16. Body v13 further has projection 22 which has a slot 23for the purpose ot' keyingthis tool tola shank. Cutters 14- vhave oneside beveled not press receive retaining nut 16, and means for rothespanner holes shown. Retainlng nut 16 tating said adjusting cone, as forinstance has a central and threaded opening adapted l to threadedportion of projection 21, and

means for its rotation as for instance the Spanner holes shown.

Clamping device y is shown in Fig. III and consistsl of a'v tubularbushing 6 and a clamping screw@ Each tubular bushing 6 which fits intoan opening provided for thatpurposein body 13, has a flat and beveledspot 12 adapted to fit the beveled side of cutters 2, and has a centralopeningr toireceive clamping screw 7. In order to adjust this tool,release screws 7 and rotate adjusting cone 15 until cutters 14 move inor out to the required size, then tighten screws 7 and the tool Will b eready for use. In this tool, retaining nut 16 may be used to tighten orclamp cutters 14 as Well as retaining adjusting cone 15; clampingdeviceg/ may then be omitted.

Referring particularly to the cutting tool f shown in Figs. IV and V;'this consists of body 40, of cutter blocks 41, of adjusting cone 42, andof lock nut 43. Body 40 has a central and circular opening 44 to receivea shank, and a projection on its rear end with slots 45 to key body 40to said shank. Body "40 further has slots 46 to receive cutter blocks41, and chip grooves 47. Body 40 further has, at one end, an enlargedportion.

lto support cutter blocks 41. Adjacent to said enlarged portion body 40has aplain portion. to receive adjusting cone 42, and adjacent to saidplain portion body 40,has a threaded portion to receive lock nut 43.Cutter blocks 41 fit into slots 46, and are threaded on one side.Cutters 48 are secured to cutter blocks 41, either by means ofsoldering, brazing, Welding, casting; or any other means. Adjusting cone42 has a central opening adapted to said plain portion on body 40, and acone face which is threaded and adapted to engage said .threaded side ofcutter blocks 41. A suitable means for taking hold is provided, as forinstance the spanner holes shown. LockA nut 43has a central and threadedopening adapted to said threaded portion of body' 40, and a suitablemeans for taking hold, as for instance the Spanner. holes shown. Inorder to ad? just this tool, release lock nut 43, rotate adjusting cone42 until the cutters reach the size required, then tighten lock nut 43Which also tightens adjustmg cone 42, and the tool Body 49 has a centralopening 55 to receive a shank, and a projection With'slots 56 to keybody 49 to said'shank. Body49 further has an enlarged portion which hasslots 57 to receive cutters 50'; adjacent'to said enlarged portion, andin front thereof, body 49- has a plain portion to receive adjusting cone51, and adjacentto said. plain! portion, body 49 has a threaded portionto receive retaining nut54; adjacent to said enlarged portion, and inrear thereof, body.49 has a smaller and plain portion to receive lockcone 52, and adjacent to said plain portion body 49 has a threadedportion to receive lock nut 53. Cutters 50 fit slidingly into slots 57and have one side threaded to engage the threaded cone face of adjustingrcone 51. Cutters 50 are threaded on their cutting face to suitanygeneral or particular pitch to be tapped. vAdjlisting cone 51 has acircular opening to fit over said plain portion of body 49, and athreaded cone face to engage said threaded side of cutters 50. Adjustingcone 51 further has a counterboreto receive retaining nut 54, and aprojection 58 which is adapted to receive a Wrench for the purposeofrotating adjusting cone 51. Lock cone 52 has a central opening to titover said plain portion of body 49, and a plain cone face adapted' tobear against the pla-in side of cutters 50. A suitable means forpreventing rotation while tightening lock nut 53 is provided, as forinstance the Spanner holes shown. Lock nut 53 has a central and threadedopening-to enga-ge said threaded-portion of body 49, and has means forits rotation, as for instance the Spanner holes shown. Retaining nut 54has a central and threaded opening to engage said threaded portion ofbody 49, and is adapted to said counterbore of adjusting cone 51. Asuitable means for itsrotation is provided in retaining nut 54. In orderto adjust this tool, release lock nut 53, rotate adjusting cone 51 untilthe cutters are set to the required size, then tighten lock nut 53,'andthe tool is ready for use.

Referring particularlyto the cutting tool shown in Fig. VII; thisconsists if body 59, of cutters 60, of adjusting cone 61, of lock cone62, of sleeve 63, andof retaining nut 64. Body v59 has a central opening65 to receive a shank, and a projection with slots 66 to key body 59tosaid shank. Body 59` further nas an enlarged portion with slots 67 forcutters adjacent to, and in front of said enlarged portion body 59 has aplain portion anda head 68 adapted to receive and retain adjusting cone61; adjacent to, and back of said enlarged Aportion body 59 has a plainportion to receive sleeve 63, and adjacent to the last said plainportion body 59 has a threaded portion to receive retaining' nut 64.Cutters 60 fit slidingly into Slots 67, and have one side threaded toengage the threaded cone face of adjusting cone 6l. Adjusting cone 61has a central opening and counterbore adapted to said plain portion andhead 68 of body 59, and a threaded cone face to engage said threadedside of cutters 60. Adjusting cone 61 further has a suitable means forits rotation, as for instance the Spanner holes shown, and must, in thiscase, be split or made in halves in order to be put into place. Lockcone 62 has a central and threaded opening to engage the threadedportion of sleeve 63, and a plain cone face which bears against theplain side of cutters 60. Lock cone 62 further has a means forA itsrotation, as for instance the Spanner holes shown. Sleeve 63 has acentral opening to lit said plain portion of body 59and is threaded toengage said threaded opening in lock cone 62. A means for its rotationis provided, as for instance the Spanner holes shown. Retaining nut 64has a central, and threaded opening to' engage said threaded portion ofbody 59, and a means for its rotas tion, as for instance the Spannerholes shown.

In order to adjust this tool, releasey lock cone 62, rotate adjustingcone 61 until cutters 60 are set to the required size, then tighten-lookcone 62, and the tool is ready for use. This arrangement'shows anapplication of a split adjusting cone. l

Referring particularlyY tof the cutting toolV shown in Fig. VIII; thisl,c snisists o-:body 69, of cutters 70,'of adjusting ring: 71, 'and oflock nut 72. Body 69 husa central ope'ni ing 78 to Vreceive, a shank,and a projection with a slot 74 to key body 69 t'o said shank. Body 69further has an enlarged portion'with slots 75 to receive cutters 70, anda somewhat smaller portion 7 6 which serves as an abutment for cutters70. Body 69 further has a plain portion to receiveadjusting ring 71, anda threaded 'portion lto receive lock nut Cutters 70 have 'one Sidethreaded to engage the threaded face of adjusting ring r 71. Adjustingring 71 has a central opening to fit said plain portion of body 691 anda means for its rotation, as for instance the Spanner holes shown.Adjusting ring 71 further has one perpendicularface threaded to engagesaid threaded side of cutters 70. It should be noted here that, althoughsaid threads are cut upon a face perpendicular to the axis of the toolor body and not upon a @one face, said perpendicular face acts as a gagesaid threaded portion of body 69, and

a means for its rotation, as for instance the Spanner holes shoWn.` Inorder to adjust this tool, release lock nut 72, rotate adjusting ring 71until the cutters are set to the required size, `then tighten lock nut 72 and the tool is ready for use. p

Referring particularly to the cutting tool shown in Fig. IX; thisconsists of body 77, of cutters 78, of adjusting ring 79, and of locknut 80. This tool is similar to the tool shown in, Fig. VIII, exceptthat adjusting ring 79 and lock nut 80 are in front, and that body 77has a beveled abutment to suit the beveled side of cutters 78.

Referring particularly to the cutting tool shown in Fig. X; thisconsists of body 81, of cutters 82, of adjusting sleeve 8 3, ofadjusting cone 84, vand of ayclampingmeans. 'Body 81 has a suitableshank, and a recess `adapted to receive adjusting sleeve 83. Body 81further has a threaded projection 85 to receive said clamping meanswhich consists of a washer and nut. Slots 86 are provided vin outerpartof body 81 to receive cutters.

imeans of spline 108, so that it may slide end- 'wise or longitudinallyupon adjusting sleeve iin 83, but may not rotate independently of adijusting sleeve 83. Adjusting` cone 84 further has a means for itsrotation, as for in- 4s'tance'the Spanner holes shown. In order toadjust this tool, release locking means (nut on projection 85), rotateadjusting 'i sleeve`83 and adjusting cone 84 until the c utters are setto the size required, then tighten the clamping means and the tool isready for use.

Referring particularly to the cutting tool shown in Fig. XI; thisconsists of body 87, of cutters 88, or'l adjusting sleeve 89, ofadjusting ring 90, and of a clamping means. This tool is similar tothetool shown` in Fig.

X-except that the ends of cutters 88 are square or perpendicular to theaxis ofthe tool. The explanation of the adjustments- 93, of adjustingcone 94,.of lock nut 95, and of means -for securing said cutter block tosaid body, either rigidly or loatingly. Body 91 has a centralslot-adapted to receive cutter A Lblock 92,r anda central opening 96,transverse to 'said slot, to receive said means for securing sald cutterblock to sald body, which means consists of screw 97 which hasa-'r'educed portion 98 to receive block 99;

said block 99 has two taper sides and two straight sides and isrotatably mounted upon the reduced portion 98. An opening is provided incutter block 92 and Ablocks 99 fit therein. Thus it will be seen thatwhen rotatingv screwl 97 one Way block 99 will be forced into saidopeningr in cutter block 92 and said cutter block will be securedrigidly to the body; Whereas lvvhen rotatingscrew 97 in the oppositedirection block 99 will be forced out of said opening in cutter block 92and said cutter block will he held ioatingly in said body, since thetaper block movingAout of a taper aperture must leave a space `betweensaid block and the Walls of said aperture as shown in Fig. XIII, andwhich space allows cutter block 92 to move laterally or' float. Cutterblock 92 fits into said central slot, has grooves 100 to receive cutters93, and has arectangular opening with two taper sides to receive block99 as previously mentioned. Cutterblock 92 further has a plain andreduced portion to receive adjusting cone 94, and a reduced and threadedportion to receive lock r1 1 1t 95. f Cutters 93 t slidingly intogrooves 100 and have one side beveled and adapted to the beveled side ofgrooves 100, the 'other side of cutters 93 isthreaded to engage' thethreaded cone face of adjust ingr' cone 9.4. .Adjusting cone 94 has acentral opening to fit said reduced'and plainI portion of' cutter block92 and a threaded cone face to engage said threaded side of cutters 93.A means Jfor its rotation is provided, as for instance the spanner holesinstance the spanncr holes shown.

shown. Lock nut 95 has a central and threaded opening to engage saidreduced and threaded portion of cutter block-92, and turthcr'has a meansfor vits rotation, as for The arrangement shown in Figs. XII and -XTTI.may be modified as shown in Fig. XIV; this tool can be used as a rigidtool vonly and will not float` and the securing i. means of Fins. XIIand XIII may be omitted; Body 91 is similar to body 91 except that theslot is 4narrower to accommodate the narrower cutter block 92, and thata -cutters l93.

but no threaded portion being provided on cutter blockl 92a. Glitters93a 'are similar to. Adjusting cone 94 is similar. to adjusting cone 94except that conical portion 94b is provided. Lock nut 95 is similar tolock nut 95 except that a conical'open-- ing is provided to tit over theconical portion of adjusting cone 94. This arrangement of adjusting cone'and lock nut will lock the cutters and the cutter block at oneoperation. In order to adjust these tools, release ylock nut 95 or 95,rotate adjusting cone 94 or 94a until the cutters are set tothe requiredsize, then tighten lock nut 95 01'95 and the tool is ready for use.

Referring particularly to the threadingA die shown in Fig. XV, `thisconsists of body 101, of cutters 102, of adjusting ring 103, of

lock nut 104, and of retaining nut 105. Body 101 has a suitable shankand a central ro cess 106 to allow the object workedupon to pass in.Body 101 further has an jen-- 'threaded portion 91h is provided thereon,

larged portion with slots 107 to receive eut-' ters 102,'and a threadedportion at its front' end to receive retaining nut 105. Body 101 furtherhas a plain portion to receive -adjusting ring;r 103, anda threadedPortion to receive lock nut 104. Cutters 102 t slidingly into slots `107and have one side threaded to engage adjust-ing ring 103. Ad justingring 103 has a' central opening to fit said plain portion ot body 101,andone`- threaded face to engage said threaded side on cutters 102. Ameans for its rotation'f'is provided, as for instance the Spanner lholesshown. Locknut 104 has a central and threaded opening to engage saidthreaded portion of body 101, and a means for its rotation as forinstance f the `Spanner holes shown. Retaining nut 105 h a centraL- an'dthreaded opening to engage said threaded portion of body 101, and ameans for its ro# tation, as for instancethe jspanner'holes shown.Thexmethod of adjusting this tool should be easily understood frompreviousdescriptions. The cutters of this tool may. 'of course, `beplaced singularly simiiar'to previous description and illustration, aswill be obvious to anyone skilled in the"art. Graduation may be providedfon any of the tools so'that the amount of adjustment may be read. Itwill be seen that either the adjustinmmembor; or themeans for operatingthe `adjustin`g.,f1nember, or both, are located near the cutters orthe'front `of the -tool whereby convenient accessibilityis attained. ByAsuch an arrangement, lthe tooly may lbe adjusted while in the machine,thus `saving the time of removing the tool from the machine Whcnadjustingn the same.

The several modifications :shown and described' should enable anyoneskilledin the art to malte and use any or all of said modiieations, asWell as design,` make and use incassi others which employ the 'spiritand intent of used; that the bodyfofijiiie cutters or cutter blocks maybe placedat Vany angle to, or

` perpendicular to the axis ,of the tool; that the cutters or cutterblocks may bejplacedl so that-their cutting faces are either radial withthe axis-of the tool, or radial and at an angle with said axis, or at anangle with the diameter (Fig. V) and parallel .with said axis, or at anangle with the diameter 0 the combination of a body 'having a pluralityand at an angle with said axis, or A arallel with and in front oraheadof the dlameter (as seen in Fig. XIII for instance) andparallelwith said axis, or parallel with and in front or ahead of thediameterandl at an angle with said axis; orparallel with and 'back' ofthe diameter (reverse or opposite of .the location of'cutter shown in'Fi XIII) and parallelwith said axis, or. para lel with and back of thediameter and atan angle With said axis. When placing the cut ters aheadof the diameter, a negative cutting-rake is given the cutters and suchtools such tools are best adapted to operate upon steelA orsimilar'materials.v It is preferred that the cutters are placed at anangle, either with the axis of the tool, or With the diameter of theto'ol, or With both the axis and the diameter. It may further be notedthat the adjustment of said cutters or cutter blocks maybe accomplishedeither by an adjusting cone or vby an adjusting ring/having a threadedface or faces adapted' and arranged to adjust the tool.4

n will be seen that in al1-oi the, modifications shown the sides jofsaid threads are vangularly disposed i'n relation to" the axis of thetool aswell as to the direction of the' v pressure brought uponthecutters by the locking means `When locking the tool; this is for thepurpose of producing a wedging action to lock the cutters firmly andprevent'l lost motion.

I claim:

,s ing a conical screwthreaded surface thereon locking said adjustingmembers in adjusted' position; the sides of' said threads being inclinedwith respect to the axis oi said device to form Wedge-shaped seats forsaid cutters'upon said adjusting-member.

2. Ina device of the character described,

of slots, a cutter mounted in each'of said slots, the bottom of eachofsaid slotsbeing beveled to form a Wedgefshaped seat for onel edge ofeachfof said cutters, one edge of each of said cutters being beveled toengage said beveled bottom of said slots, the' edge opposite sidebeveled edge being provided with threads, an adjusting-member having ascrew-threaded surface thereon which is adapted to engage thethreads-'upon said cutters, and means :for locking the said mear' bersin adjusted position; the sides of .said threads being inclined withrespect to the axis of said device to form Wedgeshaped seats for thethreaded edge of said cutters upon said adjustingmember. l

3. In a device of the chara'eterdescribed,

'the combination4 of a body having slots inclined to the axis of saidbody, a cutter mounted in each of said slots, each of' said. slotshaving a beveled bottom to form Wedge-shaped seat for one edge of eachof said cutters, 'each oi said cutters havinga beveled edge to engagesaid beveled bottoni of said slots, each. o-said cutters .being pro=vided with threads upon the edge opposite. said beveled edge, anadjusting-,member hat' which is adaptedv to engage said tliucade uponsaid cutters, and 4means for locking the said adjusting-members inadjusted position; the sides oi' said threads being inclivid withrespect to the axis of said device form Wedgeshaped seats for saidcutters upon said adjusting-member.

CHRISTIAN F. HEINEL. Witnesses:

HENRY R. Srnow, FRANK S. Siurrrr.

